Excess geometry/surface from Boolean Split

Hello fellow Rhino users and experts, I was just wondering if there’s a way to delete this excess geometry after the boolean split? I have a contoured polysurface and did a boolean split to remove certain parts off of it. But, the result gave me extra geometry on the edges. Please refer to the screenshot. I hope you can help me with this. Thanks!

I also tried copying the sub-object and it seems that it comes from that cross surface. But I cannot select the rogue geometry using sub-object filters, it comes together with the main surface itself.

can you please share a minimal rhino / .3dm file that allows to recreate the problem ?
it will be quite hard / impossible to help from a screenshot.

You mean access?

Hey Martin. I meant excess, since there’s an extra unwanted geometry and I just wanted to select that particular face/surface to delete it.

1 Like

Hi Tom, sure. Thanks for responding. Please let me know if there’s any other info I can try to provide

for rhino forum.3dm (11.5 MB)

Hi Michael - try this:
ExtractSrf and click on the excess bit.
Once that face is extracted, ShrinkTrimmedSrf, DupBorder and UntrimBorder. Re-trim the face with the extracted border and join it all back up.
You could probably avoid this by setting the document tolerance smaller - say .001 rather than .01 , when you start modeling.

-Pascal

Hi Pascal, thank you so much. It worked. Appreciate the tips!!

Hi again Pascal,

One problem I encountered with joining it back up with the original polysurface is that now it has become an OPEN polysurface. Any tips regarding that?